One Drive was formerly known as SkyDrive and now Microsoft is forcing it's user to get friendly with One Drive, instead of other cloud services since Windows 8 and 8.1. As said by Microsoft Windows 10 will be final version of it's OS series and it will be served as service instead of software.
Removing / Disabling One Drive in Windows 10
To prevent One Drive to auto start you can disable it from task manager's startup tab.
- Open Task Manager (Right click on task bar and select task manager).
- Now Click on Startup tab.
- Right Click on One Drive and Disable it.
You can also completely remove One Drive from Windows 10 and Windows 8 and restore it later.